Oceanography Questions
Duxbury Chapter 2

  1. What two elements is the universe made primarily of?
    Carbon and nitrogen
    Hydrogen and helium
    Hydrogen and oxygen
    Iron and nickel
    Silicon and oxygen

  2. What is the correct order of the planets in the Solar System, starting closest to the Sun?
    Mars, Mercury, Earth, Venus, Jupiter, Saturn, Uranus, Neptune, Pluto
    Mercury, Mars, Earth, Venus, Jupiter, Saturn, Uranus, Neptune, Pluto
    Mercury, Mars, Venus, Earth, Jupiter, Saturn, Uranus, Neptune, Pluto
    Mercury, Venus, Earth, Mars, Jupiter, Neptune, Uranus, Saturn, Pluto
    Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto

  3. What is thought to be the age of the nine planets relative to each other?
    They formed sequentially from the sun outward with Pluto formed last.
    They formed sequentially from Pluto inward with the one nearest the sun formed last.
    The inner planets formed together first and then the outer planets formed together later.
    The outer planets formed together first and then the inner planets formed together later.
    They all formed at roughly the same time.

  4. Why does the moon have more craters than the earth?
    Craters develop much better on smaller planetary bodies.
    The moon is much older than the earth.
    The moon has a stronger gravitational attraction than the earth.
    The moon captured most asteroids before they could strike the earth.
    The moon has little tectonics or weathering to obliterate craters.

  5. What elements are the atmospheres of Jupiter and Saturn primarily composed of?
    Argon and krypton
    Hydrogen and helium
    Nitrogen and carbon dioxide
    Nitrogen and methane
    Nitrogen and oxygen

  6. Where did the heavy elements that make up the bulk of the earth originate?
    In a supernova
    In meteorites
    In the Big Bang
    In the earth itself
    In the sun

  7. Which planet is closest in size to the earth?
    Mars
    Mercury
    Neptune
    Uranus
    Venus

  8. Which planet besides the earth has evidence of erosion by running water?
    Mars
    Mercury
    Neptune
    Uranus
    Venus

  9. Which planet has a runaway greenhouse effect?
    Mars
    Mercury
    Neptune
    Uranus
    Venus

  10. Which planet has virtually no atmosphere?
    Mars
    Mercury
    Neptune
    Uranus
    Venus

  11. What is the largest planet in the solar system?
    Earth
    Jupiter
    Mars
    Neptune
    Saturn

  12. Which of the following planets is not a gas giant?
    Jupiter
    Neptune
    Pluto
    Saturn
    Uranus

  13. What are comets mostly made of?
    Ammonia
    Hydrogen
    Ice
    Iron
    Rock

  14. Match each layer of the earth's interior with its composition.
    Layer Composition
    Continental crust
    Inner core
    Mantle
    Oceanic crust
    Outer core
    Felsic silicate minerals
    Iron and nickel
    Mafic silicate minerals
    Nitrogen and oxygen
    Ultramafic silicate minerals

  15. What has been the most useful method for determining the structure of the earth's interior?
    Core samples
    Density studies
    Magnetic field
    Meteorites
    Seismology

  16. Which layer of the earth's interior is liquid?
    Crust
    Inner core
    Mantle
    Outer core
    All of the above

  17. Which layer of the earth's interior has the lowest density?
    Continental crust
    Inner core
    Mantle
    Oceanic crust
    Outer core

  18. Which layer of the earth's interior has the highest density?
    Continental crust
    Inner core
    Mantle
    Oceanic crust
    Outer core

  19. The Mohorovicic discontinuity lies at the boundary of what two layers?
    Crust and mantle
    Crust and outer core
    Mantle and inner core
    Mantle and outer core
    Outer core and inner core

  20. What is thought to be the primary origin of ocean water on earth?
    Conversion from carbon dioxide
    Meteorites
    Remnant of the earth's original atmosphere
    Solar winds
    Volcanic eruptions

  21. What is thought to be the primary origin of free oxygen in the earth's atmosphere?
    Conversion from carbon dioxide
    Meteorites
    Remnant of the earth's original atmosphere
    Solar winds
    Volcanic eruptions

Please report any errors in the exam or problems with the program to Dr. Heaton.